code: def __init__(self, capacity):
      super(SumSegmentTree, self).__init__(
          capacity=capacity, operation=np.add, neutral_element=0.0
      )
      self._value = np.array(self._value)
  
file_path: stable-baselines/stable_baselines/common/segment_tree.py
imports: import numpy
label_desc: Use image node_id 1 to create a new SumSegmentTree object from inherited base classes: SegmentTree with example: obj = SumSegmentTree(capacity)